Supplemental horseshoe



Patented July 6,1880.

Emma- EHP5-E|.HILL B1) Mfume..-

G, G. HILL. Supplemental Horseshoe.

'wflaesses, 7M w UNITED STATES PATENT OFFICE.

/ CHARLES G. HILL, OF ARLINGTON, MARYLAND.

SUPPLEMENTAL HORSESHOE.

SPECIFICATION forming part of Letters Patent No. 229,608, dated July 6,1880.

Application filed October .29, 1879.

To all whom it may concern Be it known that I, CHAS. G. HILL, ofArlington, Baltimore county, State of Maryland, have invented certainnew and useful Improvements in Supplemental Horseshoes; and I herebydeclare the same to be fully, clearly, and exactly described as follows,reference being had to the accompanying drawings, in Which Figure 1 is abottom plan of the shoe; Fig. 2, a side elevation of the same.

My invention relates to that class of horseshoes designed for use inconnection with the ordinary shoes that are secured to the hoof; and itconsists of an expansible two-part shoe adapted to occupy a positioninside of the permanent shoe, and secured thereto in a peculiar manner;the design being, mainly, to avoid unnecessary weight and the doublethickness of shoe all around, the calks alone in my shoe being under theordinary shoe.

In the accompanying drawings, A A are the two halves of the shoe, to oneof which, A, is secured a strong rivet or bolt, B, whose head is oblongin shape and lies in the longitudinal axis of the shoe, as shown. Thepart A is slotted at b, the two parts A A being joined by turning themuntil the bolthead enters the slot. In every other position the boltsecurely holds them together, while admitting of a lateral motion to theextent of the length of the slot. Each half of the shoe has a flange, a,which, when the shoe is in place, comes under the edge of the permanentshoe, against the sides of which the shoulders a abut. Lugs c 0, justforward of the heel-calks, are perforated for the expandingscrew D, onone end of which is a square or polygonal head, (1, that fits in acorrespondingly-shaped hole in the lug a, which prevents the screw fromturning. The other end of the screw passes loosely through an oblonghole, 0, in the opposite lug, c, the hole being made oblong to admit ofthe relative angular movement of the screw and shoe as the latter isexpanded. A nut, or, preferably, two nuts, 0, (one serving to jam theother,) are mounted on the screw D. E E are the calks, which projectfrom the shoe so as to rest on the permanent. shoe.

In applying the device, the nut or nuts 0 are turned back until the shoewill enter within the permanent shoe on the horses hoof. Being thenapplied, the nut (l is turned up by means of a wrench or suitableimplement, expanding the supplemental shoe until its shoulders a arejammed closely against the inner walls of the pernianent shoe, theflanges a coming above the same and securing the supplemental shoe inplace. The jam-nut is next turned up against the other one, and theoperation is complete.

It will be seen from the foregoing description of the construction ofthe device that the halves of the shoe are readily separable, that onlythe calks come under the ordinary shoe, and that the screw is removablefrom both parts of the device. These features secure advantagesrespectively as follows: Either half may be renewed when worn out or itscalk breaks; the weight of the device is greatly reduced, while securingall desired strength; and the screw and nut may be readily replacedshould the former bend or break or its threads or those of the nut wearout.

A certain feature may be referred to more at length. It will be observedthat while the parts of the shoe are, strictly speaking,hinged orpivoted together, they are still capable of a lateral motion withreference to each other to the extent of the slot b. By this means thespreading of the parts by means of the screw is not a mere spreading asabout a pivot, but it effects a lateral movement of the parts which jamsthe shoulders at against the inner walls of tlie shoe all around. Theimportance of this feature will readily be appreciated.

The shoe, as a whole, meets every requisite in an article of its class.

Being devoid of lacing or other means of attachment on the outside ofthe hoof, it is not liable to be cut loose by interfering or abrasionfrom stones or ice. Its means of attachment are under the hoof, out ofthe way, and are of such nature that all rattling or looseness of theshoe is prevented.

I am aware that supplemental horseshoes consisting of two parts hingedtogether at the forward ends and having expanding-screws are old, andsuch I do not claim.

What I claim is- 1. In combination with the part A, having screw D,stepped in the part A, passing freely oblong-headed bolt B, the part A,having slot through a lug on part, A, and carrying a nut 9 1), wherebythe halves are separably attached 0, as set forth.

together, as and for the purpose set forth. CHARLES G. HILL. 5 2. Asupplemental horseshoe consisting of \Vitnesses:

thepartsAA, having jointly an oblongheaded R. D. WILLIAMS,

bolt and a slot, b, in combination with the ED. RAINE.

